– Lat/Long: 48.71° N 121.99° W
South Twin Sister
Weather Forecast, United StatesIssued: 4 pm Sun 29 Mar Local TimeUpdates in: hr min sUpdate imminent
Issued: 4 pm Sun 29 Mar Local Time
Updates in:
Update imminent hr min s
Issued: 4 pm Sun 29 Mar Local Time
Updates in:
Update imminent hr min s
3 South Twin Sister Elevations: 3 Forecast Elevations: Days 1–4 Weather SummaryLight rain (total 3mm) at first, then becoming colder with a dusting of snow on Sun afternoon. Freeze-thaw conditions (max 7°C on Tue afternoon, min -4°C on Sun night). Wind will be generally light. | Days 5–7 Weather SummaryHeavy rain (total 24mm), heaviest during Wed night. Later becoming colder with a dusting of snow on Wed night. Mild temperatures (max 7°C on Sat morning, min 2°C on Wed night). Wind will be generally light. | ||||||||||||||||
Sun 29 | Monday 30 | Tuesday 31 | Wednesday 1 | Thursday 2 | Friday 3 | ||||||||||||
PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | AM | PM | night | |
 |  |  |  |  |  | | | | |  | | |  |  | | | |
light snow | snow shwrs | some clouds | light rain | some clouds | cloudy | cloudy | some clouds | light rain | light rain | light snow | light rain | light rain | rain shwrs | rain shwrs | light rain | some clouds | |
km/h | |||||||||||||||||
 |  |  |  |  |  | ||||||||||||
1 | 1 | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | |
2 | — | — | 0.2 | — | — | — | — | 0.8 | 4 | 14 | 5 | 1 | 0.1 | 0.1 | 0.2 | — | |
max °C | 2 | 0 | 1 | 4 | 2 | 6 | 7 | 4 | 5 | 5 | 4 | 2 | 4 | 3 | 5 | 6 | 5 |
min °C | 2 | -4 | -2 | 3 | 0 | 3 | 7 | 3 | 3 | 4 | 2 | 2 | 3 | 3 | 3 | 6 | 4 |
0 | -4 | -2 | 3 | 0 | 3 | 6 | 1 | 1 | 2 | 1 | 1 | 2 | 3 | 3 | 6 | 4 | |
700 | 0 | 650 | 1000 | 800 | 1200 | 1400 | 1300 | 1100 | 1200 | 850 | 900 | 1000 | 1050 | 1150 | 1350 | 1350 | |
Cloud base (m) | 550 | 700 | 650 | 950 | 600 | 2750 | 2750 | 1650 | 550 | 550 | 550 | 600 | 600 | 600 | 650 | 950 | 1600 |
 | — | — | 6:50 | — | — | 6:48 | — | — | 6:46 | — | — | 6:43 | — | — | 6:41 | — | — |
 | 7:32 | — | — | 7:35 | — | — | 7:36 | — | — | 7:37 | — | — | 7:38 | — | — | 7:40 | — |
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South Twin Sister Weather (Days 0-3):
The weather forecast for South Twin Sister is: Light rain (total 3mm) at first, then becoming colder with a dusting of snow on Sun afternoon. Freeze-thaw conditions (max 7°C on Tue afternoon, min -4°C on Sun night). Wind will be generally light.
South Twin Sister Weather (Days 3-6):
Heavy rain (total 24mm), heaviest during Wed night. Later becoming colder with a dusting of snow on Wed night. Mild temperatures (max 7°C on Sat morning, min 2°C on Wed night). Wind will be generally light.
This table gives the weather forecast for South Twin Sister at the specific elevation of 500 m. Our advanced weather models allow us to provide distinct weather forecasts for several elevations of South Twin Sister. To see the weather forecasts for the other elevations, use the tab navigation above the table. For a wider overview of the weather, consult the Weather Map of Washington.